Is it permissible for Muhammad to marry the questioner's sister, knowing that their mother breastfed her brother Najib, but did not breastfeed him?
Source: FtawySummary from Ftawy's records · added here Sep 2, 2026
If your mother breastfed "Najeeb," then he is a brother to her daughters only through fosterage, and not to the other sons of the daughters who were not breastfed by her. Therefore, it is permissible for Muhammad to marry your sister unless there is another legitimate reason for fosterage between them. The prohibition is established by five full breastfeedings.
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/105530
Where this answer came from
- Source platform
- Ftawy
- Original fatwa ID
- 105530
- Added here
- . This is when the answer was added to El Fatwa, not the fatwa's date.
- Text
- Summary from Ftawy's records, reviewed by El Fatwa's sharia committee.
- Read the full ruling
- Read the full answer on Ftawy